Rule of thumb about interview clothing: If there is doubt, then don't do it.
Also see: http://www.styleforum.net/a/what-should-i-wear-to-a-job-interview
Also note: It's "pin stripe", not "pen strip". Employers like attention to detail, and proper spelling is part of that.

Burnished shoes usually have a darker toecap. But if you insist:
http://www.styleforum.net/t/156206/how-to-strip-and-repolish-shoes/0_100
http://www.styleforum.net/t/273248/how-to-make-dark-brown-leather-shoes-lighter/0_100